| Warranty |
Changes in the warranty accrual are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Six Months Ended | | | June 30,
2025 | | June 30,
2024 | | June 30,
2025 | | June 30,
2024 | | Warranty accrual: | (in thousands) | | Balance, beginning of period | $ | 23,610 | | | $ | 21,349 | | | $ | 24,341 | | | $ | 20,573 | | | Payments made | (3,447) | | | (3,037) | | | (7,389) | | | (5,659) | | | Warranty expense | 3,599 | | | 3,320 | | | 6,810 | | | 6,718 | | | Balance, end of period | $ | 23,762 | | | $ | 21,632 | | | $ | 23,762 | | | $ | 21,632 | |
Warranty expense (benefit) by reportable segment (Note 21) is as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Six Months Ended | | | June 30,
2025 | | June 30,
2024 | | June 30,
2025 | | June 30,
2024 | | (in thousands) | | AAON Oklahoma | $ | 2,710 | | | $ | 3,039 | | | $ | 4,877 | | | $ | 5,997 | | | AAON Coil Products | 461 | | | 340 | | | 860 | | | 520 | | | BASX | 428 | | | (59) | | | 1,073 | | | 201 | | | Total | $ | 3,599 | | | $ | 3,320 | | | $ | 6,810 | | | $ | 6,718 | |
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